LG Electronics LRMM1430SW manual Adjustment Procedures, Check the Door Latch and Switch Closings

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1. ADJUSTMENT PROCEDURES

To avoid possible exposure to microwave energy leakage, adjust the door latches and interlock switches, using the following procedure.

ONLY AUTHORIZED SERVICE PERSONNEL SHOULD MAKE THIS ADJUSTMENT.

The Interlock Monitor and Primary Interlock Switch acts as the final safety switch protecting the user from microwave energy. The terminals between “COM” and “NC” of the Interlock Monitor must close when the door is opened. After adjusting the Interlock Monitor Switch, make sure that it is correctly connected. See Figures 1-a and 1-b throughout this procedure.

CHECK THE DOOR LATCH AND SWITCH

CLOSINGS.

NOTE: The out case of the microwave oven is removed.

(1)Set the microwave oven on its side so that you can see the latch board and the switches, as shown in

Figure 1-a.

(2)Close the door tightly and check gaps A and B to be sure they are no more than 1/64” (0.5 mm). See Figure 1-b for close-up view of gaps A and B (door latches).

If all gaps are less than 1/64” (0.5 mm), adjustment of the latch board may not be necessary. Go to Steps 5 and 6 to check the sequence of the switches.

NOTE: To correct sequence of the Primary Interlock Switch, Secondary Interlock Switch and the Interlock Monitor Switch is very important.

If any gap is larger than 1/64” (0.5 mm), you will need to adjust the latch board-U, L. Go to step 3 and follow all steps in order.

ADJUST THE LATCH AND SWITCH CLOSINGS

(3)Loosen the screw holding the plastic latch board as shown.

(4)With the oven door closed tightly, move the latch board upward toward the top of the oven and/or away from the door latch until the gaps are less than 1/64” (0.5 mm).

Hold the latch board tightly in this position until you check the sequence of the switches in steps 5 and 6.

TEST THE LATCH AND SWITCH SEQUENCE

(5)Open the oven door slowly. Watch the door latch, the Primary Switch. Release Rod and Lever on the switches to make sure they are zero to the body of the switches in the following sequence:

-Primary Interlock Switch

-Secondary Interlock Switch

-Interlock Monitor Switch

Adjust the latch board until the switches operate in this sequence. See Steps 3 and 4.

(6)Close the oven door slowly and be sure it is tightly closed. Watch the three switches to make sure they are zero to the body of the switches in the following sequence:

-Interlock Monitor Switch

-Primary Interlock Switch

-Secondary Interlock Switch

NOTE: The Interlock Monitor Switch is an added safety check on the Primary and Secondary Interlock Switches. If the Primary and Secondary Interlock Switches allow the oven to operate with the door open, the Monitor Switch will blow the fuse.

(7)When you achieve the proper sequence of switches in Steps 5 and 6, tighten the latch board screws at that point.

TEST THE MICROWAVE ENERGY LEAKAGE

(8)Using a survey meter, make sure the microwave energy is below 5 mW/cm.sq.

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Contents Microwave Oven Page Model LRMM1430SW LRMM1430SB Adjustment Procedures Check the Door Latch and Switch ClosingsAdjust the Latch and Switch Closings Test the Latch and Switch SequencePage Precautions on Installation Features and SpecificationsGeneral Precautions in USE Trial OperationSpecifications Switch ChartOverall Circuit Diagram A. Schematic Diagram Matrix Circuit for Touch KEY Board Operating Procedures A. Control Panel Display Window ClockEasy USE Chart Clock HI-POWER CookingKitchen Timer MULTI-STAGE CookingProcedure for Measuring Microwave Energy Leakage EquipmentMeasuring Microwave Energy Leakage Measurement with the OUT Case RemovedMeasurement with a Fully Assembled Oven Record Keeping and Notification After MeasurementDisassembly Instructions Important NotesWire Removing Control Circuit Board FigureAIR Guide Removal Figure Magnetron Removal Removing the Turntable MotorInterlock System FAN Motor Assembly RemovalInterlock Mechanism Primary Interlock Switch Test Secondary Interlock Switch TestMonitor Switch Test Components Test Procedure ResultsTest and Checkout PROCEDURES, and Troubleshooting Test Procedures ComponentsInverter MagnetronSensor Correct PositionFAN Motor RelayTurntable Motor Checkout Procedures for Fuse Blowing Checkout ProceduresProblems Causes Checkout Procedures for Relay Problem aProblem B YES GoodPage Trouble Shooting Condition Cause RemedyCheck ConditionResult Check Result PCBCondition Check Result Cause RemedyNo microwave oscillation Exploded View Door Parts Controller Parts Oven Cavity Parts Latch Board Parts Oven Interior Parts Base Plate Parts Replacement Parts List For Model LRMM1430SBScrew TAPPING,PAN Head For Model LRMM1430SW WTT022 1TTL0402422 Schematic Diagram of P.C.B Printed Circuit Board B. Parts List LOC Description Specification SVC Alter RY1 May
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